What does one mean by exothermic and endothermic reactions? Give examples.

Answers (1)

Exothermic  reactions : Reactions in which heat is given out along with the products are called exothermic reactions.

Example :CH_4(g) + 2O_2 (g) 
ightarrow CO_2 (g) + 2H_2O (g)

 Endothermic reactions:Reactions in which energy is absorbed are known as endothermic reactions.

Example : The process of photosynthesis.

6CO_2 (g) +6H_2O(g)
ightarrow C_6H_1_2O_6(aq) + 6O_2 (g)

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